For a war to start, you need 3 things: materiel, political support, popular support. In 1914 both the Central Powers and the Entente had all 3 criteria satisfied. The war ended when the Central Powers ran out of popular support for the war.
For a war to start, you need 3 things: materiel, political support, popular support. In 1914 both the Central Powers and the Entente had all 3 criteria satisfied. The war ended when the Central Powers ran out of popular support for the war.